iOS_屏幕截图

github地址: https://github.com/mancongiOS/UIImage.git

UIImage的category

UIView+ImageScreenShot.h

#import <UIKit/UIKit.h>

@interface UIView (ImageScreenShot)

- (UIImage *)imageScreenShot;

@end

UIView+ImageScreenShot.m

#import "UIView+ImageScreenShot.h"

@implementation UIView (ImageScreenShot)

- (UIImage *)imageScreenShot {

    UIGraphicsBeginImageContext(self.frame.size);
    [self.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage * image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return image;
}

@end

使用:

    self.view.backgroundColor = [UIColor redColor];

    UIImage * image = [self.view imageScreenShot];

    if (image) {
        self.view.backgroundColor = [UIColor whiteColor];

        self.imageView.image = image;
    }